Douglas Reed Ellin (born 1967 or 1968)[1] is an American screenwriter and film and TV director, known best for creating the HBO television series Entourage.

[3] Ellin grew up in Merrick, New York, attending John F. Kennedy High School before graduating from Tulane University in 1990.

He moved to Los Angeles in the early 1990s to be a stand-up comedian and soon got a job in the mail room at New Line Cinema.

Two years later, Ellin made another independent comedy film Kissing a Fool, starring David Schwimmer, who was now known due to his role on Friends which was in its fourth season.

Ellin has said the character of Ari Gold's wife in Entourage was based on Hecht.